We explain how to concentrate light simultaneously at multiple selected volumetric positions by means of a 4D illumination light
field. First, to select target objects, a 4D imaging light field is captured. A light field mask is then computed automatically for
this selection to avoid illumination of the remaining areas. With one-photon illumination, simultaneous generation of complex
volumetric light patterns becomes possible. As a full light-field can be captured and projected simultaneously at the desired
exposure and excitation times, short readout and lighting durations are supported.